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Diffstat (limited to 'net/ipv4/tcp_illinois.c')
-rw-r--r--net/ipv4/tcp_illinois.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index ae629860088..8e3165917f7 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -83,9 +83,14 @@ static void tcp_illinois_init(struct sock *sk)
}
/* Measure RTT for each ack. */
-static void tcp_illinois_rtt_sample(struct sock *sk, u32 rtt)
+static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
{
struct illinois *ca = inet_csk_ca(sk);
+ u32 rtt;
+
+ ca->acked = pkts_acked;
+
+ rtt = ktime_to_ns(net_timedelta(last)) / NSEC_PER_USEC;
/* ignore bogus values, this prevents wraparound in alpha math */
if (rtt > RTT_MAX)
@@ -103,13 +108,6 @@ static void tcp_illinois_rtt_sample(struct sock *sk, u32 rtt)
ca->sum_rtt += rtt;
}
-/* Capture count of packets covered by ack, to adjust for delayed acks */
-static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked)
-{
- struct illinois *ca = inet_csk_ca(sk);
- ca->acked = pkts_acked;
-}
-
/* Maximum queuing delay */
static inline u32 max_delay(const struct illinois *ca)
{
@@ -325,12 +323,12 @@ static void tcp_illinois_info(struct sock *sk, u32 ext,
}
static struct tcp_congestion_ops tcp_illinois = {
+ .flags = TCP_CONG_RTT_STAMP,
.init = tcp_illinois_init,
.ssthresh = tcp_illinois_ssthresh,
.min_cwnd = tcp_reno_min_cwnd,
.cong_avoid = tcp_illinois_cong_avoid,
.set_state = tcp_illinois_state,
- .rtt_sample = tcp_illinois_rtt_sample,
.get_info = tcp_illinois_info,
.pkts_acked = tcp_illinois_acked,